 /*******************************************************************************
  * Copyright (c) 2004, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.cheatsheets;

 import org.eclipse.help.ILiveHelpAction;
 import org.eclipse.swt.widgets.Display;

 /**
  * Live help action for launching a cheat sheet from a help book.
  * <p>
  * The initialization string passed to {@link #setInitializationString(String)}
  * is the id of a cheat sheet contributed to the <code>cheatsheetContent</code>
  * extension point.
  * </p>
  *
  * @since 3.0
  */
 public final class OpenCheatSheetFromHelpAction implements ILiveHelpAction {
     
     /**
      * Cheat sheet id; null until initialized.
      */
     private String cheatsheetID = null;

     /**
      * Creates a new live help action.
      */
     public OpenCheatSheetFromHelpAction() {
         super();
     }

     /* (non-javadoc)
      * This method is called by the eclipse framework. The initialization string must be the id of a
      * registered cheat sheet in order for the action to work.
      * @see ILiveHelpAction#setInitializationString(String)
      */
     public void setInitializationString(String data) {
         cheatsheetID = data;
     }

     /* (non-javadoc)
      * @see java.lang.Runnable#run()
      */
     public void run() {
         // Active help does not run on the UI thread, so we must use syncExec
 Display.getDefault().syncExec(new Runnable () {
             public void run() {
                 new OpenCheatSheetAction(cheatsheetID).run();
             }
         });
     }
 }

